Basicallly angled adaptors for everything.

Once upon a time in a galaxy far, far away my apple magnetic charger was right angled. Unfortunately the technology was forgotten and eventually lost with the passage of time.

Female-to-female RJ45 couplers ("join adapters" as described by the article) have been very handy in my experience. They're cheap enough that I don't mind leaving one now and again. It's so handy to be able to unplug something, splice in my laptop / tap / etc, and quickly return things they way I found them without rerouting the original cable. It's also handy when you don't have a long enough patch cable with you but you do have a couple shorter ones.

Organization:

I got a storage organizer with 24 drawers. One for each type of cable I use. So instead of one big box that I have to hunt through, I have instant, labeled access to all my usb cables, and a few other cables and items.

Not tiny, but I have a corner desk, and I mounted big long 16 port power strips under each “wing”: Tripp Lite 16 Outlet Bench &... https://www.amazon.com/dp/B000051174

Roll of very sticky Velcro tape To mount things under desk.

A “toaster” style sata adapter: I treat it like a tape drive, clunk in a “tape” (sata or spinning disk) to back up to.

I love having so many little daptery-doos. My best hack is storing them though. I have a two tier desk, 24" deep main surface, and 10" monitor 'shelf'. I keep a half dozen tiny adhesive drawers under the shelf so they're always at hand.

One for flash storage + usb dongles, another with every usb adapter + short cables, audio things + usb power meters, pens, and other stuff. It is so nice being able to quickly use almost any device without a scavenger hunt first.

RE: "Boom Microphone Cable"

I wanted headphones for FPS games with a good soundstage. Generally, gaming headsets are not known for price-to-quality value.

After researching, bought Sennheiser HD560S, but I needed a mic.

V-MODA makes a $20 attachment called a "BoomPro Mic", which uses standard 3.5mm audio jack and gives you not only a mic, but also a volume dial.

It turns out that having an easily-accessible volume dial is the best thing since sliced bread.

Can't believe I never got a cable with this feature before, they ought to put them on all headphone audio cables.

Beware: most USB-to-SATA adapters do not work with HDDs, only SSDs

One USB A-to-C adapter I particularly like is a cable with adapters tied to each end, so you can use it for any combination of (A or C host) to (C or micro device).

FM transmitters you have to be slightly careful - they need to get power somehow; think about how that will happen.

My current favorite is a 1 meter retractable USB C to C cable. Combined with the smaller GaN charger and the lower power requirement of newer MacBooks, I can pack really light, and that's great for bike and motorcycle travel.

I also have a set of USB adapters that plug into each other and let me charge anything with the same cable. Again, less stuff to pack.

A couple of my favorites:

15- and 25-foot power cables to eliminate outlet strips and extension cords in some installations.

Outlet strips with super long cords -- especially useful for avoiding the need to chain outlet strips in settings where doing so is considered to be a safety violation.

90 degree rotated RJ-45 male-male connectors would allow very easy RPi-like clusters.

Add to this list: small portable HDMI/VGA monitor for checking on headless machines.

If you use the various Ethernet adapters make sure you run some speed tests when you get it.. Those cheap dongles/converters ect are notorious for Working but cutting your speed and reliability of the connection.